Geochemistry and petrogenesis of Mashhad granitoids: An insight into the geodynamic history of the Paleo-Tethys in northeast of Iran

Eocene K-rich adakitic rocks in the Central Iran: Implications for evaluating its Cu–Au–Mo metallogenic potential

“…This suggests it was derived by melting of delaminated thickened lower continental crust, followed by subsequent interactions with peridotite during upward emplacement. Also, the occurrence of inherited zircon in the studied samples is consistent with a model involving partial melting of delaminating lower crust (Mirnejad et al, 2013). Kal-e-Kafi sub-economic porphyry copper complex is generally older than those of the Kuh Panj economic porphyry copper deposits.…”

“…0.12) rule out an origin from a mafic magma by extensive fractional crystallization (see Mirnejad et al, 2013); and (5) The Dy/Yb vs. Dy diagrams (see Gao et al, 2007;Fig. 14) indicate that the studied intrusions has not undergone fractional crystallization and reflects an end-member partial melting model.…”

Tafresh intrusive rocks within the Urumieh‐Dokhtar Magmatic Arc: Appraisal of Neo‐Tethys subduction

“…Iran, situated between the continents of Laurasia to the north and Gondwana to the south and in the middle part of the Alpine‐Himalayan orogen, has been greatly affected by the evolution of both the Palaeo‐ and Neo‐Tethys Oceans, from the Palaeozoic to the Tertiary. The opening and closing of the Palaeo‐Tethys Ocean occurred between the Ordovician and Jurassic, while the birth and demise of the Neo‐Tethys happened from the Jurassic to the Cenozoic (Berberian & King, ; Mirnejad, Lalonde, Obeid, & Hassanzadeh, ; Natal'in & Sengör, ; Richards, ; Stampfli, ). The subduction of the Neo‐Tethys oceanic floor underneath the Iranian continental plate resulted in two distinctive arc magmatic events in the NW–SE trending Sanandaj‐Sirjan magmatic arc (SSMA) and UDMA (Figure ) in the Mesozoic and Cenozoic, respectively.…”

Magmatic garnet in the Triassic (215 Ma) Dehnow pluton of NE Iran and its petrogenetic significance

“…It is thought that the Silurian opening of the Palaeo-Tethys in northern Iran followed northward subduction beneath the Turan plate (the southern part of Eurasia) in the Late Devonian and the collision between the Iranian microcontinent and the Turan plate in Late Triassic time (Alavi 1991;Natalin and Sengör 2005). Mineralogical and geochemical works by Samadi (2009) and Samadi et al (2012aSamadi et al ( , b, 2014, together with the isotopic data of Mirnejad et al (2013) confirm that the Dehnow DTG suite is metaluminous to mildly peraluminous with a calc-alkaline I-type character, and formed after the subduction of the Palaeo-Tethys oceanic slab beneath the Turan block along the Alpine-Himalayan suture zone. Karimpour et al (2010) suggested that remnants of the Palaeo-Tethys crust (meta-ophiolite and meta-flysch) were intruded by granitic plutons in the Triassic, based on zircon U-Pb dating (215 ± 4 Ma for the DTG pluton).…”